To use the bps just place them hook them up and put them within logistics network, for some of the builds I used rare beacons, if you want to you can upgrade planner them to common, undersupplying won't break this lol. Lastly some of the malls have belts in them, i thinks its pretty easy to see what those belts need through just following where they go, I think if i did use 2 lane items i didnt make certain resources are on certain sides.